Mergers and Acquisitions (Details 3) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended				0 Months Ended
	Apr. 24, 2012 Peoples	Apr. 24, 2012 Peoples As previously recorded by acquiree	Apr. 24, 2012 Peoples Initial Fair Value Adjustments	Apr. 24, 2012 Peoples Subsequent Fair Value Adjustments	Dec. 13, 2012 Savannah Bancorp ("SAVB")	Dec. 13, 2012 Savannah Bancorp ("SAVB") As previously recorded by acquiree	Dec. 13, 2012 Savannah Bancorp ("SAVB") Subsequent Fair Value Adjustments	Dec. 13, 2012 Savannah Bancorp ("SAVB") Fair Value Adjustments
Mergers and Acquisitions
Number of shares of common stock issued per share	0.1413
Assets
Cash and cash equivalents	$ 24,459	$ 24,459			$ 86,244	$ 86,244
Investment securities	175,892	176,334	(442)		74,203	75,460	31	(1,288)
Loans	234,245	262,858	(28,613)		601,359	660,555		(59,196)
Premises and equipment	13,296	10,094	3,202		10,448	12,555	(264)	(1,843)
Intangible assets	2,930		2,930		12,918	3,357	15	9,546
Other real estate owned and repossessed assets	8,104	13,257	(5,153)		8,883	13,934	264	(5,315)
Deferred tax asset	16,532	4,702	11,766	64	38,225	(790)	(128)	39,143
Other assets	16,705	17,588	(883)		6,149	8,497		(2,348)
Total assets	492,163	509,292	(17,193)	64	845,134	866,517	(82)	(21,301)
Deposits:
Noninterest-bearing	54,884	54,884			129,902	129,902
Interest-bearing	380,186	378,781	1,405		621,728	619,198		2,530
Total deposits	435,070	433,665	1,405		751,630	749,100		2,530
Other borrowings	9,542	9,542			30,381	30,613		(232)
Other liabilities	6,944	4,291	2,475	178	14,372	8,026	(311)	6,657
Total liabilities	451,556	447,498	3,880	178	809,874	801,230	(311)	8,955
Net identifiable assets acquired over (under) liabilities assumed	40,607	61,794	(21,073)	(114)	35,260	65,287	229	(30,256)
Goodwill	3,942		3,828	114	33,657		(229)	33,886
Net assets acquired over liabilities assumed	44,549	61,794	(17,245)		68,917	65,287		3,630
Consideration:
SCBT Financial Corporation common shares issued	1,002,741	1,002,741			1,802,137	1,802,137
Purchase price per share of the Company's common stock (in dollars per share)		$ 31.06				$ 38.20
Company common stock issued and cash exchanged for fractional shares	31,100	31,160				68,854
Cash paid for stock options outstanding		96
Cash paid for TARP preferred stock	13,400	13,293				63
Fair value of total consideration transferred	$ 44,500	$ 44,549			$ 68,900	$ 68,917
Income tax rate at which fair value adjustments are made to adjust deferred tax asset (as a percent)				35.80%				35.80%